SUMWING · line is pulling the wing forward, the net is pulling aft. ... enough net height with very little speed. At the time of creating this brochure it all

SUMWING®

FISHING WITH LESS FUEL

©HFK Engineering BV, June 2010

From fishing news (NL):

Van der Vis: ,,Monday after a storm, ground was open. The TX 38 was having

trouble with the difficult seabed while we experienced no trouble at all.´´

TX36 IN THE HARBOR OF OUDESCHILD, DUTCH BEAMER

ABOUT THE PRINCIPLE

De SumWing is

line is pulling the wing forward, the net is pulling aft. These two forces result in a

turning force or simple torque on the wing. The torque twists the wing in a diving

position. While starting the trawl, the wing wil

to the seabed. The feeler in front of the wing while counter twist the wing to a

neutral positio

a kite going up in the sky, as it goes down to the seabed.

See picture above

a torque around the

Picture above, the nose is foreseen to counter force the torque c

line and net. As soon as the feeler touches the ground it will counter twist the wing

in a natural position, so, that it will keep stable at a certain height above the seabed.

The wing is filled with air, so the weight under water is even l

BOUT THE PRINCIPLE

De SumWing is working as a alternative for a beam with beam trawling. The fishing


force or simple torque on the wing. The torque twists the wing in a diving

position. While starting the trawl, the wing will force the complete gear to go down


neutral position as soon as the wing reaches the seabed. So in short, the wing is like

a kite going up in the sky, as it goes down to the seabed.

See picture above. Fishing line is pulling forward as chains and net

a torque around the turning point. This results in the wing tilting downwards

Picture above, the nose is foreseen to counter force the torque c



The wing is filled with air, so the weight under water is even less that above

working as a alternative for a beam with beam trawling. The fishing


force or simple torque on the wing. The torque twists the wing in a diving

force the complete gear to go down


n as soon as the wing reaches the seabed. So in short, the wing is like

Fishing line is pulling forward as chains and net pulls aft. Result is

. This results in the wing tilting downwards

Picture above, the nose is foreseen to counter force the torque caused by the fishing



ess that above.

DEVELOPMENT OF THE SUMWING®

In the summer of 2007 it became clear that the principle of a self steering foil

works. After a few modifications and Computer Fluid Dynamics calculations, the

design is optimized. In the summer of 2008 this new design was tested on the

2000hp TX36 and it turned out to work very well.

CHECKING THE SHAPE IN THE FLUME TANK OF BOULOGNE

During a period of 5 weeks intensive testing was done on various types of seabed.

Also live video streaming was used to optimize the settings of the wing. Bottom

pressure was brought to a minimum so the foot of the feeler in front of the wing

could have minimal dimensions. Doing so a 84% decrease in bottom contact was

realized.

PICTURE DURING FIRST TEST WEEK 2008

BOTT

As the SumWing

on the principle

pressure only a small surface is needed to keep the wing in

seabed. The

to catch the flatfish

ARTIST IMPRESSION

Above a picture

The people of the

project. Not having tickler chains reduces the fuel usages ever more.

started using the SumWing with pulse in August 2009.

SUBSEA CAMERA IMAGE D

TOM IMPACT

SumWing is not depending on weight to get to the seabed but

principle of a foil, bottom pressure is minimal. Due to this minimal

pressure only a small surface is needed to keep the wing in position

seabed. The SumWing only replaces the beam gear, so tickler chains are still needed

to catch the flatfish.

RTIST IMPRESSION SUMW ING WITH PULSE

picture of the combination of a SumWing and a electronic

The people of the SumWing have been working on this since the beginning of the

. Not having tickler chains reduces the fuel usages ever more.

started using the SumWing with pulse in August 2009.

UBSEA CAMERA IMAGE DURING TRIALS IN 2008

the seabed but is depending

pressure is minimal. Due to this minimal bottom

position above the

mWing only replaces the beam gear, so tickler chains are still needed

electronic tickler system.

have been working on this since the beginning of the

. Not having tickler chains reduces the fuel usages ever more. The TX36

CO2 DISCHARGE

Second half of 2008 the SumWing was installed on the TX36. Below you can clearly

see the impact on full usage. The red line is from the TX38 which

of ship with exactly the same engine

Graph above is without taking in account the

the SumWing.

In the end of 2009 TX36 changed to the SumWing with pulse system. This is mainly

the combination of two systems, a wing, and a electronic tickler system. Flatfish

like sole and plaice are stimulated by electr

by the wing above the seabed. Bottom impact and drag are minimal using this

technique. Below the fuel usa

Again the red line is from the TX38 witch now uses the normal SumWing. Fuel

saving for the TX36 in th

DISCHARGE & FULL SAVING


see the impact on full usage. The red line is from the TX38 which is the same type

exactly the same engine.

Graph above is without taking in account the extra speed advantage you get from



are stimulated by electronic pulses, while the net is being towed


technique. Below the fuel usage of the past 25 weeks in 2010. (SumWing pulse)


in this period is 260.000ltr.


the same type

extra speed advantage you get from



onic pulses, while the net is being towed


ge of the past 25 weeks in 2010. (SumWing pulse)


SUMWING FOR 300HP VESSELS

The first SumWing were for 2000hp beam trawlers. Due to the demand of smaller

vessels of 300hp, a 4,5m SumWing was developed. The TX33 was the first vessel to

start with this and now a days, over 15 vessels are using the 4,5 m SumWing. For

these vessels the speed advantage is the main reason to use the wing. Next to speed

advantage, the winch, fishing lines and rollers will last longer.

In may, the YE138 started to test a 4,5 m wing with use of a chain mat. Result are

very promising till now.

The pulse modules for use in the SumWing pulse, can also be used with the 4,5m

wing. The 4,5mtr wing for pulse will have cassettes to fit the modules into.

SUMWING FOR PRAWNS

For prawn or shrimp fishing a special wing is being developed. Big challenge is to get

enough net height with very little speed. At the time of creating this brochure it all

looks promising, but a lot of testing and development is still to come.

SUMW ING FOR PRAWN FISHING, FIRST PROTOTYPE TESTED IN JUNE 2010.

ON DECK WITH THE TX36

SUMW

1Details subject to change without notice

Pulling eye for 17,5 tons

WING (12MTR) PARTS1

Details subject to change without notice

Pulling eye for 17,5 tons shackle

Extra eye for lifting gear higher to

check tickler chains.

Nose equipped with removable wear

strips

Side plates with Hardox® or wear

strip to protect the shackle's.

SPECIFICATI

WeightWeight aboveWeight submerged

Towing speedTowing speedNet height

DimensionsWidth*ThicknessLengthLength including feeler

Depth and fishing lineMinimal line to depthMaximal

Wear strips (standard)DimensionsNumber

MaterialWingFeelerSide plates

*Other dimensions and towing speeds on request

FIRST SET S


PECIFICATION 12 MTR2

Weight above water 3094 kgWeight submerged 1644 kg

Towing speedspeed* 5,5 to 7 knots

height 450 mm

Dimensions11950 mm

Thickness 170 mm950 mm

th including feeler 3011 mm

Depth and fishing lineline to depth 1 to 3

Maximal line to depth 1 to 10

Wear strips (standard)Dimensions (LxWxH in mm) 300x120x60

6 pieces

St52 or S355 (St52

Side plates St52

Other dimensions and towing speeds on request

SUMW ING READY AT BAL HETEREN BV (HOLLAND)

subject to change without notice

5,5 to 7 knots

300x120x60

S355 (high strength steel)

SPECIFICATION 4,5 MTR (300HP VESSEL)3

WeightWeight above water 461 kgWeight submerged 223 kg

Towing speedTowing speed* 4 to 6 knotsNet height 450 mm

DimensionsWidth* 4495 mmThickness 76 mmLength 518 mmLength including feeler 2088 mm

Depth and fishing lineMinimal line to depth 1 op 3Maximal line to depth 1 op 10

Wear stripsDimensions (LxWxH in mm) 300x120x60Number 1 piece

MaterialWing St52 of S355 (high strength steel)Feeler St52Side plates St52 in combination with Hardox®

*Other dimensions and towing speeds on request

COMPUTER FLUID CALCULATIONS ON THE 4,5 M SUMW ING


Information brochure made by HFK Engineering BV. The project SumWing and

SumWing pulse are made possible by the Taskforce Sustainable fisheries, Dutch

ministry LNV and European fishery fund. Development is done by HFK Engineering

BV in cooperation with the vessels TX36 (Jaap van der Vis) and TX38.

More information is also available on request, please send an e-mail to [email protected]

Several Dutch websites:

www.visserijnieuws.nl

www.visserijnieuws.punt.nl

www.sumwing.nl

PICTURE OF SUMW ING PULSE WITH PULSE MODULES. ONE MODULE IS TAKEN OUT OF THE

CASSETTE.

From fishing news (NL):

,,We are both convinced the catch is equal, using either SumWing or traditional

beam gear´´ (skipper Jaap van der Vis, TX36 and skipper Guido Betsema, TX38)

© HFK Engineering BV 2010

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This brochure by HFK Engineering BV

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correctness or actualization o

Engineering BV can't be held responsible for the content of this

information or the consequences of using the information. No rights

can be derived from the information as shown in this

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rights on this brochure are owned by

permitted to print or use

use only. None of this material may be used for any commerci

public use.

No part of this brochure may be reproduced without the prior written

permission of HFK Engineering BV

2010

HFK Engineering BV is put together with great care.

Nevertheless we can't give any guarantees regarding the completeness,

correctness or actualization of the information in this brochure. HFK

can't be held responsible for the content of this

information or the consequences of using the information. No rights

can be derived from the information as shown in this brochure.

herwise stated, the copyright, database rights and similar

are owned by HFK Engineering BV. You are

extracts from this material for your personal

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HFK Engineering BV.

Documents

SUMWING · line is pulling the wing forward, the net is pulling aft. ... enough net height with very little speed. At the time of creating this brochure it all